Mat frame for evaporative coolers



A. s. FEINBERG MAT FRAME FOR EVAPORATIVE COOLERS Filed Sept'. 28, 1945 ff /5 7 'f5 /7 Sept. 28V, 1948.

Patented Sept. 28, 1948 UNITED STATES PATENT OFFICE MAT FRAME FOR EVAPORATIVE COOLERS Archie S. Feinberg, Dallas, TeX.

Application September 28, 1945, Serial No. 619,145

3 Claims.

This invention relates to air cooling apparatus and more particularly to improvements in filter mats for evaporative coolers.

It has long been the practice in the art of cooling air by evaporation to elevate water by a pump or other means and precipitate the same through a mat composed of wood fibers. This mat, when saturated, is effective to reduce the temperature of the air constrained to pass therethrough, but difficulty is encountered in maintaining proper position of the mat in its frame because of the weight of the water held in suspension therein, causing the same to sag and become ineffective to filter the air.

The principal object of the invention is to provide means to prevent the fibrous material of the filter mat in an evaporative cooler from sagging under the weight of water therein. To accomplish this, an improved mat frame is designed wherein vertically spaced pairs of horizontal ribs are arranged in confronting relationship to clampingly engage the mat on both sides, suspending the same, yet without hindrance to water passing downwardly therethrough.

With the foregoing and other objects in view, the invention has particular reference to certain features of accomplishment to become manifest as the description proceeds, taken in connection with the accompanying drawing, wherein:

Figure 1 is a perspective View of a filter mat constructed according to the present invention, and

Figure 2 is a view in horizontal section, taken on line 2-2 of Figure l.

Continuing with a more detailed description of the drawing, reference numeral I0 denotes vertically disposed, nested angle members constituting the ends of a filter mat frame. It is of course essential that the top and bottom of the frame be open to permit water to be deposited in the top thereof and discharged at the bottom after passing through and saturating a mat or pad II, composed of wood fibers or other loosely associated materials having the capacity to hold water in suspension for cooling air constrained to pass therethrough by a fan or blower.

Obviously, in the absence of suitable means for holding the mat II in the frame, it will sag under weight of the water deposited into the top thereof.

The present invention consists in providing ribs I2 which are, in fact, angle irons, whose ver-l tical flanges I3 supply sufficient rigidity to the frame by virtue of tongues I4, entering slots made in the end members Ill and clinched, as shown.

The horizontal flanges I2 also have tongues I5 similarly fastened to said end members ID.

In Figure 2 it will be noted that the said flanges I2 are castellated at I6, the c-astellations of the confronting -anges being in alignment, one with the other to dei-lne spaces lI 'I therebetween for the downward passage of water through the iilter mat I I.

In constructing the frame, the two side sections comprised of angles. Il! and horizontal members IZ are separately assembled. The mat II is placed on one section and the companion section is Vthen placed on the mat. In this relationship, the castellations I6 of each horizontal member will compress the iibers of the mat and when the nested end members I0 are secured together, as by spot welding, the mat is held securely against sagging when saturated with water. It is to be noted that spaces Il between the castellations I6 provides adequate passages for water flowing downwardly through the mat into the water reservoir of the cooling unit, to be recirculated by the pump of conventional equipment.

Manifestly, the construction as shown and described is capable of some modification and such modification as may be construed to fall within the scope and meaning of the appended claims is also considered to be within the spirit and intent of the invention.

What is claimed is:

1. In an evaporative cooler, a mat and mat frame, the latter comprising vertical end members and confronting pairs of side members vertically spaced and supported by said end members, members of said pairs each having a flat portion lying in a common horizontal plane and castellated whereby the confronting fiat portions of said pairs of .side members will compressedly engage said mat at vertically and horizontally spaced points throughout its area.

2. In an evaporative cooler, a mat frame comprised of vertical end members and pairs of side members vertically spaced and supported by said end members, members of said pairs each having a iiat portion lying in a common horizontal plane, a lter mat interposed between said side members, the flat portions of the latter being cut away at horizontally space-d intervals to de- .iine castellations confronting those of a companion side member to clampingly engage said mat at vertically and horizontally spaced points throughout its area.

3. A filter mat frame for evaporative coolers including vertically disposed and nested end members, pairs of side members supported by said end members and in vertically spaced relationship, the members of said pairs each having a at portion disposed in a horizontal piane, the latter having aligned castellations, and a i'ilter mat interposed between the castellated at portions of said pairs of side members and sustained thereby.

ARCHIE s. FEINBERG.

REFERENCES CITED The following references are of record in the le of this patent:

Number Number UNITED STATES PATENTS Name Date Mallet Jan. 14, 1930 Slayter et al. May 30, 1939 FOREIGN PATENTS Country Date France Dec. 9, 1922 

